Análisis del protocolo MPTCP en plataformas Linux

The motivation behind the development of this TFG (Trabajo de Fin de Grado) comes up by itself when it's known how this MPTCP project contributes to the TCP protocol and therefore to the computer networks. As it is studied more in detail inside section 2.3 of this document, the goal of MPTCP is to improve TCP's e ciency in environments where it exists more than one NIC (Network Interface Card). With TCP, data transfer is achieved establishing a transport level connection between two hosts who wish to interchange data. This connection is associated to one single IP address of each host and consequently to only one NIC. However, what happens if one node inside a computer network is provided with more than one NIC (hence with more than one IP address)? TCP protocol is not prepared for this kind of environments and because of that it wouldn't be possible to use more than one of these multiple NICs for the data transfer. It's not hard to gure out that it is highly probable that with this data transfer approach many valuable network resources might be being waisted because of the under-use of one or more NICs. The reader of this document might have already come up with the advantages of using MPTCP, the multipath version of its predecessor TCP. MPTCP manages to split a single TCP data ow among multiple network paths using multiple network interfaces, so that maximizing the use of the network resources available for one node. There is a vast number of possible applications for this new protocol functionality. From personal computers with cable interfaces, to mobile phones with WiFi and 4G, and even data centres with multiple interconnected servers. Because of the discussed motives, it has been considered that the development of this TFG is a great opportunity to study this new promising protocol which can contribute enormously to the data transport optimization through the Internet and practically every single present computer network in the world.Ingeniería Telemátic